COMPOSITION

SURFACE PREPARATION

Cracks

Cracks must be clean and dry. Clean out cracks with oil-free compressed
air.

Flat Surfaces to be Sealed

All surfaces flat surfaces to be sealed must be properly prepared as
outlined in Epoxy.com Surface Preparation Guide.
Surfaces to be sealed should be lightly (brush blast) shot blasted to
remove laitance and expose surface cracks.

MIXING AND INSTALLATION

MMA CONCRETE CRACK HEALER and SEALER Product #684LV requires the addition of
MMA HARDENER Epoxy.com Product #695 to start the hardening process. The amount of hardener must be adjusted to the respective surface temperature (see table below). At temperatures below 40°F,
MMA COLD TEMPERATURE ACCELERATOR Product #696 must be used in addition to the amount of hardener used at the 40°F or 30°F level.

*Do not use less than 2 oz. Product #695 Hardener by volume unless confirmed with jobsite testing.
Consult with Epoxy.com Technical Services if performing mix ratio by weight instead of by volume.

Product #696 MMA COLD TEMPERATURE ACCELERATOR

At temperatures below 40°F, Product #696 MMA Cold Temperature Accelerator must be used in addition to the amount of hardener used at the 40°F. As a rule of thumb, add about
1/2 oz by volume per gallon of resin @ 39° to 32°F, up to 2.0 oz by volume per gallon @ -20°F, increasing the quantity gradually in a consistent linear progression as the temperature decreases.

VERY IMPORTANT: MMA COLD TEMPERATURE ACCELERATOR Product #696MUST be added to the MMA
resin and thoroughly blended BEFORE adding the MMA HARDENER
Epoxy.com Product #695, or hazardous decomposition may occur (i.e., violent foaming).
MMA COLD TEMPERATURE ACCELERATOR Product #696 will cause yellowing, but this will have no effect with a penetrating sealer as long as a resin-rich surface film is not created. Inspect underside of elevated decks for evidence of full depth cracks that may require additional treatment to prevent draining of resin.

General Installation Instructions

Inspect the underside of elevated decks for evidence o full depth cracks
that may require additional treatment to prevent draining of the resin. Cracks greater than 1/8" width should be repaired individually prior to application of flood coat. Fill 1/8" or larger cracks with loose sand and pour small quantity of mixed
MMA CONCRETE CRACK HEALER and SEALER Product #684LV into the crack and spread with a paint brush, allow to cure before applying flood coat.
MMA CONCRETE CRACK HEALER and SEALER Product #684LV is spread evenly on the surface as a flood coat with a squeegee or rollers and allowed to absorb completely into the concrete substrate. Do not allow to form puddles.

Coverage rate will vary depending on the porosity of the concrete and quantity of cracks. For estimating purposes evaluate the substrate with a test
patch whenever possible, or use 80-100 ft2/gallon/coat as a general guide, assume two coats on very absorbent surfaces. Apply subsequent applications of resin only after the previous application is completely hardened. There should be very little resin film on the surface upon completion. Surface resin will wear over time, however the filled cracks and porosity will remain sealed.

CLEAN UP

COVERAGE

Will vary depending on porosity of
substrate
and
quantity of cracks. 80-100 ft sq/gallon/coat is a suggested starting point.
Two
coats may be necessary on very porous substrates.

STORAGE

Store in a cool
and
dry place, below 80°F, out of direct
sunlight.
Do not store
near
open flame or food.
Shelf life
is 6 months in the original unopened containers.
After
extended storage: Additives and fillers can separate with
storage, materials should be inspected for any
visible signs of settlement, polymerization, or paraffin coagulation
(clumps,
strands).
Thoroughly mix pails or
drums (use a drum mixer,
do not rely on rolling drum on floor) and pour into new containers to inspect resin before use.

HELPFUL
HINTS

Adequate cross ventilation should be
provided. Good ventilation during the processing ensures a good
cross
linking and hardening.
Read, understand
and follow Material Safety Data Sheets and Application Instructions prior to use.
Use only as directed.
If
substrate and/or material temperature is above 90°F, DO NOT apply
material.

Proper mixing and installation is critical to the optimal success of all products.
See
Installation Tips,Techdata, &
MSDS for more details on our products.
Be sure to contact us with any questions and/or concerns that you have.